Patents Assigned to Fluor Technologies Corporation
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Patent number: 12215922Abstract: A method for removing heavy hydrocarbons from a feed gas by: feeding, into an absorber, a top reflux stream and a second reflux stream below the top reflux stream, wherein the absorber produces an absorber bottom product stream and an absorber overhead product stream; depressurizing and feeding the absorber bottom product stream to a stripper to produce a stripper bottom product stream and a stripper overhead product stream; cooling and feeding a portion of the absorber overhead product stream back to the absorber as the top reflux stream; and pressurizing and feeding the stripper overhead product stream back to the absorber as the second reflux stream. Systems for carrying out the method are also provided.Type: GrantFiled: May 23, 2019Date of Patent: February 4, 2025Assignee: Fluor Technologies CorporationInventors: John Mak, Jacob Thomas, Dhirav Patel, Curt Graham, Irene Zhang
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Patent number: 12195333Abstract: A method and system for liquid sulfur degassing is disclosed. The method and system generally involve degassing liquid sulfur in a degassing vessel, and the level of the liquid sulfur in the degassing vessel is controlled in the degassing vessel by determining the level of liquid sulfur in the degassing vessel.Type: GrantFiled: June 14, 2023Date of Patent: January 14, 2025Assignee: FLUOR TECHNOLOGIES CORPORATIONInventors: Stephen N. Fenderson, Thomas K. T. Chow
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Patent number: 12098882Abstract: A method for removing heavy hydrocarbons from a feed gas by: feeding, into an absorber, a top reflux stream and a second reflux stream below the top reflux stream, wherein the absorber produces an absorber bottom product stream and an absorber overhead product stream; depressurizing and feeding the absorber bottom product stream to a stripper to produce a stripper bottom product stream and a stripper overhead product stream; cooling and feeding a portion of the absorber overhead product stream back to the absorber as the top reflux stream; and pressurizing and feeding the stripper overhead stream back to the absorber as the second reflux stream. A system for carrying out the method is also provided.Type: GrantFiled: December 13, 2018Date of Patent: September 24, 2024Assignee: Fluor Technologies CorporationInventors: John Mak, Jacob Thomas, David Schulte
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Publication number: 20230295755Abstract: A modular direct reduction system for producing direct reduced iron (DRI) includes a reformer system which receives a flow of feed gas and which discharges a flow of reducing gas, the reformer system including a plurality of separate reformer modules connected together and wherein each reformer module includes a reformer vessel including an internal chamber, a reactor tube extending through the internal chamber of the reformer vessel and containing a catalyst configured to react with the feed gas received by the reactor tube to form the reducing gas, and a burner to burn a fuel gas to heat the reactor tube, and a furnace system connected to the reformer system and including a furnace having a first inlet which receives an iron ore, a second inlet which receives the reducing gas from the reformer system to form the DRI, and an outlet which discharges the DRI.Type: ApplicationFiled: March 17, 2022Publication date: September 21, 2023Applicant: Fluor Technologies CorporationInventors: Jonathan M. DAILEY, Ray A. CORRADI, Menko H. UBBENS
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Patent number: 11725879Abstract: A natural gas liquid plant is retrofitted with a bolt-on unit that includes an absorber that is coupled to an existing demethanizer by refrigeration produced at least in part by compression and expansion of the residue gas, wherein ethane recovery can be increased to at least 99% and propane recovery is at least 99%, and where a lower ethane recovery of 96% is required, the bolt-on unit does not require the absorber, which could be optimum solution for revamping an existing facility. Contemplated configurations are especially advantageous to be used as bolt-on upgrades to existing plants.Type: GrantFiled: September 8, 2017Date of Patent: August 15, 2023Assignee: Fluor Technologies CorporationInventors: John Mak, Sabrina Devone, James Shih, Curt Graham
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Patent number: 11713246Abstract: A method and system for liquid sulfur degassing is disclosed. The method and system generally involve degassing liquid sulfur in a degassing vessel, and the level of the liquid sulfur in the degassing vessel is controlled in the degassing vessel by determining the level of liquid sulfur in the degassing vessel.Type: GrantFiled: March 12, 2020Date of Patent: August 1, 2023Assignee: Fluor Technologies CorporationInventors: Stephen N. Fenderson, Thomas K. T. Chow
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Publication number: 20230042038Abstract: In a hydrocarbon-fed steam methane reformer hydrogen-production process and system, carbon dioxide is recovered in a pre-combustion context, and optionally additional amounts of carbon dioxide are recovered in a post-combustion carbon dioxide removal, to provide the improved carbon dioxide recovery or capture disclosed herein.Type: ApplicationFiled: October 13, 2022Publication date: February 9, 2023Applicant: Fluor Technologies CorporationInventors: Ravi RAVIKUMAR, Sunil SINGHAL
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Patent number: 11505462Abstract: In a hydrocarbon-fed steam methane reformer hydrogen-production process and system, carbon dioxide is recovered in a pre-combustion context, and optionally additional amounts of carbon dioxide are recovered in a post-combustion carbon dioxide removal, to provide the improved carbon dioxide recovery or capture disclosed herein.Type: GrantFiled: February 15, 2021Date of Patent: November 22, 2022Assignee: Fluor Technologies CorporationInventors: Ravi Ravikumar, Sunil Singhal
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Publication number: 20220340419Abstract: Ammonia, methanol, Fischer Tropsch products, and derivatives thereof are made by using hydrogen and oxygen supplied from an electrolyzer that is at least partially powered by renewable power, resulting in green process and systems that produce green products disclosed herein. A process using biomass and renewable energy includes producing an unshifted syngas from biomass and oxygen in a gasification unit, introducing water into an electrolyzer to produce an oxygen product and a hydrogen product, and introducing the oxygen product to the gasification unit. The electrolyzer is powered by renewable energy, and the oxygen product supplies at least a portion of the oxygen to the gasification unit.Type: ApplicationFiled: April 20, 2022Publication date: October 27, 2022Applicant: Fluor Technologies CorporationInventors: Ravi RAVIKUMAR, Sunil SINGHAL, Soumya Jyoti CHOUDHURY, Kakul SINGH
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Publication number: 20220267147Abstract: A process for reforming for producing hydrogen and generating electricity, comprises: introducing a feed comprising a hydrocarbon stream to a reformer to produce unshifted synthesis gas (syngas); introducing the unshifted syngas to a water gas shift unit to produce a shifted syngas; removing CO2 from the shifted syngas to produce a CO2 depleted syngas and a CO2 product; introducing the CO2 depleted syngas to a pressure swing adsorption unit to produce a hydrogen product and an off-gas comprising carbon monoxide, carbon dioxide, unreacted methane; splitting a portion of the hydrogen product; and providing the portion of the hydrogen product to an electricity generator for generating electricity for use within the process.Type: ApplicationFiled: February 22, 2022Publication date: August 25, 2022Applicant: Fluor Technologies CorporationInventors: Ravi RAVIKUMAR, Sunil SINGHAL
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Patent number: 11420211Abstract: A method includes separating, in a first stage of separating, crushed ore material by size into a first fines stream and a first coarse stream; grinding the first coarse stream in a second stage of grinding; feeding the product of the second stage of grinding back to the step of separating; feeding the first fines stream from the step of separating to a recovery circuit; producing a rejected stream from the recovery circuit of crushed ore material that does not meet the target mineral size; separating, in a second stage of separating, the rejected stream from the recovery circuit into a second fines stream and a second coarse stream; grinding the second coarse stream in a third stage of grinding; and feeding the product of the third stage of grinding back to the recovery circuit.Type: GrantFiled: December 29, 2017Date of Patent: August 23, 2022Assignee: FLUOR TECHNOLOGIES CORPORATIONInventor: Mark Sherman
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Publication number: 20220259042Abstract: In a hydrocarbon-fed steam methane reformer hydrogen-production process and system, carbon dioxide is recovered in a pre-combustion context, and optionally additional amounts of carbon dioxide are recovered in a post-combustion carbon dioxide removal, to provide the improved carbon dioxide recovery or capture disclosed herein.Type: ApplicationFiled: February 15, 2021Publication date: August 18, 2022Applicant: Fluor Technologies CorporationInventors: Ravi RAVIKUMAR, Sunil SINGHAL
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Patent number: 11365933Abstract: A LNG liquefaction plant includes a propane recovery unit including an inlet for a feed gas, a first outlet for a LPG, and a second outlet for an ethane-rich feed gas, an ethane recovery unit including an inlet coupled to the second outlet for the ethane-rich feed gas, a first outlet for an ethane liquid, and a second outlet for a methane-rich feed gas, and a LNG liquefaction unit including an inlet coupled to the second outlet for the methane-rich feed gas, a refrigerant to cool the methane-rich feed gas, and an outlet for a LNG. The LNG plant may also include a stripper, an absorber, and a separator configured to separate the feed gas into a stripper liquid and an absorber vapor. The stripper liquid can be converted to an overhead stream used as a reflux stream to the absorber.Type: GrantFiled: April 22, 2019Date of Patent: June 21, 2022Assignee: FLUOR TECHNOLOGIES CORPORATIONInventors: John Mak, Jacob Thomas, Curt Graham
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Publication number: 20210381760Abstract: Embodiments relate generally to systems and methods for operating a natural gas liquids plant in ethane rejection and in ethane recovery. A natural gas liquid plant may comprise an absorber configured to produce an ethane rich bottom stream and an ethane depleted vapor stream; a stripper fluidly coupled to the absorber configured to, during ethane rejection, fractionate the ethane rich bottom stream from the absorber into an ethane overhead product and a propane plus hydrocarbons product, and configured to, during ethane recovery, fractionate the ethane rich bottom stream into an ethane plus NGL stream and an overhead vapor stream; and an exchanger configured to, during ethane recovery, counter-currently contact the ethane rich bottom stream from the absorber with the ethane depleted vapor stream from the absorber, thereby heating the vapor stream and chilling the ethane rich bottom stream before the ethane rich bottom stream is fed to the stripper.Type: ApplicationFiled: August 4, 2021Publication date: December 9, 2021Applicant: Fluor Technologies CorporationInventor: John MAK
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Patent number: 11179671Abstract: A system for carbon dioxide capture from a gas mixture comprises an absorber that receives a lean solvent system stream (containing a chemical solvent, physical-solvent, and water) from the stripper, a stripper that receives the rich solvent stream from the absorber and produces the product carbon dioxide and the lean solvent through the use of a reboiler in fluid communication with a lower portion of the stripper, a condenser in fluid communication with a vapor outlet of the stripper, a cross-exchanger in fluid communication with a rich solvent system outlet from the absorber and a rich solvent system inlet on the stripper, and a splitter. The splitter is configured to separate the rich solvent system stream into a first portion and second portion, where the first portion directly passes to the stripper and the second portion passes through the cross-exchanger prior to passing to the stripper.Type: GrantFiled: May 22, 2018Date of Patent: November 23, 2021Assignee: Fluor Technologies CorporationInventors: Paul M. Mathias, Satish Reddy
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Publication number: 20210341221Abstract: An LNG plant comprises a cold box and a refrigeration unit fluidly coupled with a plurality of heat exchanger passes in the cold box. The refrigeration unit is configured to provide a first refrigerant stream to a first heat exchanger pass of the plurality of heat exchanger passes at a first pressure, a second refrigerant stream to a second heat exchanger pass at a second pressure, and a third refrigerant stream to a third heat exchanger pass at a third pressure. The second refrigerant stream comprises a first portion of the first refrigerant stream, and the third refrigerant stream comprises a second portion of the first refrigerant stream. The second pressure and the third pressure are both below the first pressure. The cold box is configured to produce LNG from a natural gas feed stream to the cold box using a refrigeration content from the refrigeration unit.Type: ApplicationFiled: July 12, 2021Publication date: November 4, 2021Applicant: Fluor Technologies CorporationInventor: John Mak
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Patent number: 11112173Abstract: An LNG plant comprises a cold box and a refrigeration unit fluidly coupled with a plurality of heat exchanger passes in the cold box. The refrigeration unit is configured to provide a first refrigerant stream to a first heat exchanger pass of the plurality of heat exchanger passes at a first pressure, a second refrigerant stream to a second heat exchanger pass at a second pressure, and a third refrigerant stream to a third heat exchanger pass at a third pressure. The second refrigerant stream comprises a first portion of the first refrigerant stream, and the third refrigerant stream comprises a second portion of the first refrigerant stream. The second pressure and the third pressure are both below the first pressure. The cold box is configured to produce LNG from a natural gas feed stream to the cold box using a refrigeration content from the refrigeration unit.Type: GrantFiled: July 1, 2016Date of Patent: September 7, 2021Assignee: Fluor Technologies CorporationInventor: John Mak
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Patent number: 11112175Abstract: Embodiments relate generally to systems and methods for operating a natural gas liquids plant in ethane rejection and in ethane recovery. A natural gas liquid plant may comprise an absorber configured to produce an ethane rich bottom stream and an ethane depleted vapor stream; a stripper fluidly coupled to the absorber configured to, during ethane rejection, fractionate the ethane rich bottom stream from the absorber into an ethane overhead product and a propane plus hydrocarbons product, and configured to, during ethane recovery, fractionate the ethane rich bottom stream into an ethane plus NGL stream and an overhead vapor stream; and an exchanger configured to, during ethane recovery, counter-currently contact the ethane rich bottom stream from the absorber with the ethane depleted vapor stream from the absorber, thereby heating the vapor stream and chilling the ethane rich bottom stream before the ethane rich bottom stream is fed to the stripper.Type: GrantFiled: October 20, 2017Date of Patent: September 7, 2021Assignee: Fluor Technologies CorporationInventor: John Mak
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Patent number: 11097952Abstract: Processes and systems for oxygen-enhanced Claus carbon dioxide recovery are disclosed. Oxygen is fed to a sulfur recovery unit instead of air. The tail gas is fed to a tail gas treatment unit which produces a treated tail gas, and the treated tail gas is processed in a carbon dioxide recovery unit to produce a carbon dioxide product. A method for retrofitting an existing sulfur recovery unit and tail gas treatment unit so as to recover the carbon dioxide product is also disclosed.Type: GrantFiled: June 7, 2019Date of Patent: August 24, 2021Assignee: Fluor Technologies CorporationInventors: Thomas K. T. Chow, Ryan Y. D. Chow, Ghaith Aljazzar, Denny Li
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Publication number: 20210215420Abstract: A system for processing a gas stream can include a physical solvent unit, an acid gas removal unit upstream or downstream of the physical solvent unit, and an LNG liquefaction unit downstream of the acid gas removal unit. The physical solvent unit is configured to receive a feed gas, remove at least a portion of any C5+ hydrocarbons in the feed gas stream using a physical solvent, and produce a cleaned gas stream comprising the feed gas stream with the portion of the C5+ hydrocarbons removed. The acid gas removal unit is configured to receive the cleaned gas stream, remove at least a portion of any acid gases present in the cleaned gas stream, and produce a treated gas stream. The LNG liquefaction unit is configured to receive the treated gas stream and liquefy at least a portion of the hydrocarbons in the treated gas stream.Type: ApplicationFiled: March 26, 2021Publication date: July 15, 2021Applicant: Fluor Technologies CorporationInventors: John MAK, Jacob THOMAS